Polish Revision Obesity Surgery Study (PROSS)

All participating medical institutions performing metabolic and bariatric surgeries from Poland can register patients via online questionaries. The database will include all patients with full preoperative history regarding the status of comorbidities, maximum weight and BMI. Details regarding initial surgery will be collected: type of procedure, time of procedure, length of the procedure, technical aspects (type of anastomosis, location of the anastomosis, type and amount of staplers used, length of bypassed jejunum, type of gastric band), length of hospital stay, short-term complications. The outcomes of initial surgery will be noticed: %TWL, minimum weight and BMI, remission of comorbidities, improvement of comorbidities, reduction of pharmacological treatment. Long-term postoperative complications in example de novo reflux, stenosis of anastomosis, stricture of gastric pouch will be included in analysis. The cause of revisionary surgery will be analyzed. The secondary bariatric procedure will be analyzed in terms of time, type and its length. Detail information of technical aspects will be collected. The complications and outcomes of revisional surgery will be acquired from hospitals registers, as well as, informations received from clinical follow-up.